Anh Tuan Tran appeals the sentence imposed following his guilty-plea convictions for possession with the intent to distribute a controlled substance and being a felon in possession of a firearm. Tran argues that the district court erred in sentencing him based on additional amounts of controlled substances not charged in the indictment and not admitted by him during his plea colloquy. He argues that because the additional amounts of controlled substances were not proved beyond a reasonable doubt, his sentence was erroneous under United States v. Booker, 543 U.S. 220, 125 S.Ct. 738, 160 L.Ed.2d 621 (2005).

Tran was sentenced after Booker was decided and therefore he was not subjected to a mandatory sentencing regime. “Booker contemplates that, with the mandatory use of the Guidelines excised, the Sixth Amendment will not impede a sentencing judge from finding all facts relevant to sentencing.” United States v. Johnson, 445 F.3d 793, 798 (5th Cir.), cert. denied, - U.S. -, 126 S.Ct. 2884, 165 *445 L.Ed.2d 908 (2006). “The sentencing judge is entitled to find by a preponderance of the evidence all the facts relevant to the determination of a Guideline sentencing range and all facts relevant to the determination of a non-Guidelines sentence.” Id. Such is the case “even where calculation of the appropriate range requires the court to take into account facts not proven to a jury.” Id. Accordingly, Tran’s argument lacks merit.

AFFIRMED.